Lifan LF177F-BDQ 9 HP 270cc 4-Stroke OHV Industrial Grade Gas Engine with 1" Output Shaft, Electric Start, and Universal Mounting Pattern Industrial grade OHV 4-stroke gasoline engine with 1" keyway shaft Compression release for E-Z starting - low oil shutdown engine protection General purpose engine with universal mounting plate: great for recreational vehicles, construction, farm, and ranch Electric start with recoil start back-up Replaces Honda, Briggs, Kohler, and other brands; EPA certified